Ordinal Numbers - Definition, List from 1 to 100, Chart, Examples

Definition of Ordinal Numbers

Ordinal numbers are used to describe the position or order of objects or events in a sequence. These numbers are written in a specific format, such as “1st,” “2nd,” “3rd,” “4th,” and so on. The first ten ordinal numbers are usually spelled out in full, while higher numbers are written using a combination of numbers and letters.

Real-life Examples of Ordinal Numbers

Olympic Medal Ranking
Classroom Seating Arrangement
Race Finishing Positions:
Apartment Floor Numbers
Birth Order

Difference Between Cardinal and Ordinal Numbers

Cardinal numbers are used to represent the quantity or number of objects in a set.

For example, if there are five apples in a basket, we say that the cardinality of the set of apples is five.

Cardinal numbers can be used for counting, measuring, and comparing quantities. They include numbers such as 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and so on.

Ordinal numbers, on the other hand, are used to represent the position or order of objects in a series or sequence.

For example, if you are running a race and you finish in second place, your ordinal rank is 2nd.

Ordinal numbers are written in a specific format, such as “1st,” “2nd,” “3rd,” “4th,” and so on. They indicate the order of things and their position in a sequence.

List of Ordinal Numbers from 1 to 100

Number	Ordinal	Number	Ordinal	Number	Ordinal
1	1st	21	21st	41	41st
2	2nd	22	22nd	42	42nd
3	3rd	23	23rd	43	43rd
4	4th	24	24th	44	44th
5	5th	25	25th	45	45th
6	6th	26	26th	46	46th
7	7th	27	27th	47	47th
8	8th	28	28th	48	48th
9	9th	29	29th	49	49th
10	10th	30	30th	50	50th
11	11th	31	31st	51	51st
12	12th	32	32nd	52	52nd
13	13th	33	33rd	53	53rd
14	14th	34	34th	54	54th
15	15th	35	35th	55	55th
16	16th	36	36th	56	56th
17	17th	37	37th	57	57th
18	18th	38	38th	58	58th
19	19th	39	39th	59	59th
20	20th	40	40th	60	60th

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Ordinal Numbers Examples

Example1: John finished the race in 1st place.

The ordinal number is “1st” indicating the position of John in the race.
Example2: Today is the 5th of June.

Example3: The ordinal number is “5th” indicating the date in the month of June.
The 3rd book on the shelf is my favorite.

Example4: The ordinal number is “3rd” indicating the position of the book on the shelf.
She is the 2nd student to present her project.

Example5: The ordinal number is “2nd” indicating the position of the student in presenting the project.
We will be staying on the 7th floor of the hotel.

The ordinal number is “7th” indicating the floor number in the hotel.

FAQs on Ordinal Numbers

Q: What are ordinal numbers?
A: Ordinal numbers are the numbers used to indicate the position or order of something in a series or sequence.

Q: How are ordinal numbers written?
A: Ordinal numbers are typically written with a suffix that indicates the position or order of the number. For example, “1st” is the ordinal form of “1,” and “2nd” is the ordinal form of “2.”

Q: What is the difference between cardinal and ordinal numbers?
A: Cardinal numbers are used to denote the quantity or number of objects or things, while ordinal numbers are used to denote the position or order of objects or things.

Q: What is the rule for forming ordinal numbers?
A: The rule for forming ordinal numbers is to add a suffix to the cardinal number. For example, adding “-st” to “1” gives “1st,” adding “-nd” to “2” gives “2nd,” and so on.

Q: How are ordinal numbers used in sentences?
A: Ordinal numbers are used in sentences to indicate the position or order of something in a series or sequence. For example, “John came in 3rd place in the race” indicates that John finished in the third position in the race.